Merge tag 'usb-4.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel…

…/git/gregkh/usb

Pull USB/PHY fixes from Greg KH:
 "Here are a small number of USB and PHY driver fixes for 4.14-rc6

  There is the usual musb and xhci fixes in here, as well as some needed
  phy patches. Also is a nasty regression fix for usbfs that has started
  to hit a lot of people using virtual machines.

  All of these have been in linux-next with no reported problems"

* tag 'usb-4.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (26 commits)
  usb: hub: Allow reset retry for USB2 devices on connect bounce
  USB: core: fix out-of-bounds access bug in usb_get_bos_descriptor()
  MAINTAINERS: fix git tree url for musb module
  usb: quirks: add quirk for WORLDE MINI MIDI keyboard
  usb: musb: sunxi: Explicitly release USB PHY on exit
  usb: musb: Check for host-mode using is_host_active() on reset interrupt
  usb: musb: musb_cppi41: Configure the number of channels for DA8xx
  usb: musb: musb_cppi41: Fix cppi41_set_dma_mode() for DA8xx
  usb: musb: musb_cppi41: Fix the address of teardown and autoreq registers
  USB: musb: fix late external abort on suspend
  USB: musb: fix session-bit runtime-PM quirk
  usb: cdc_acm: Add quirk for Elatec TWN3
  USB: devio: Revert "USB: devio: Don't corrupt user memory"
  usb: xhci: Handle error condition in xhci_stop_device()
  usb: xhci: Reset halted endpoint if trb is noop
  xhci: Cleanup current_cmd in xhci_cleanup_command_queue()
  xhci: Identify USB 3.1 capable hosts by their port protocol capability
  USB: serial: metro-usb: add MS7820 device id
  phy: rockchip-typec: Check for errors from tcphy_phy_init()
  phy: rockchip-typec: Don't set the aux voltage swing to 400 mV
  ...

MAINTAINERS

@@ -9213,7 +9213,6 @@ F:	include/linux/isicom.h
 MUSB MULTIPOINT HIGH SPEED DUAL-ROLE CONTROLLER
 M:	Bin Liu <[email protected]>
 L:	[email protected]
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git
 S:	Maintained
 F:	drivers/usb/musb/
 

drivers/phy/marvell/phy-mvebu-cp110-comphy.c

@@ -111,6 +111,8 @@
 #define     MVEBU_COMPHY_CONF6_40B		BIT(18)
 #define MVEBU_COMPHY_SELECTOR			0x1140
 #define     MVEBU_COMPHY_SELECTOR_PHY(n)	((n) * 0x4)
+#define MVEBU_COMPHY_PIPE_SELECTOR		0x1144
+#define     MVEBU_COMPHY_PIPE_SELECTOR_PIPE(n)	((n) * 0x4)
 
 #define MVEBU_COMPHY_LANES	6
 #define MVEBU_COMPHY_PORTS	3
@@ -468,13 +470,17 @@ static int mvebu_comphy_power_on(struct phy *phy)
 {
 	struct mvebu_comphy_lane *lane = phy_get_drvdata(phy);
 	struct mvebu_comphy_priv *priv = lane->priv;
-	int ret;
-	u32 mux, val;
+	int ret, mux;
+	u32 val;
 
 	mux = mvebu_comphy_get_mux(lane->id, lane->port, lane->mode);
 	if (mux < 0)
 		return -ENOTSUPP;
 
+	regmap_read(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, &val);
+	val &= ~(0xf << MVEBU_COMPHY_PIPE_SELECTOR_PIPE(lane->id));
+	regmap_write(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, val);
+
 	regmap_read(priv->regmap, MVEBU_COMPHY_SELECTOR, &val);
 	val &= ~(0xf << MVEBU_COMPHY_SELECTOR_PHY(lane->id));
 	val |= mux << MVEBU_COMPHY_SELECTOR_PHY(lane->id);
@@ -526,6 +532,10 @@ static int mvebu_comphy_power_off(struct phy *phy)
 	val &= ~(0xf << MVEBU_COMPHY_SELECTOR_PHY(lane->id));
 	regmap_write(priv->regmap, MVEBU_COMPHY_SELECTOR, val);
 
+	regmap_read(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, &val);
+	val &= ~(0xf << MVEBU_COMPHY_PIPE_SELECTOR_PIPE(lane->id));
+	regmap_write(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, val);
+
 	return 0;
 }
 
@@ -576,8 +586,8 @@ static int mvebu_comphy_probe(struct platform_device *pdev)
 		return PTR_ERR(priv->regmap);
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	priv->base = devm_ioremap_resource(&pdev->dev, res);
-	if (!priv->base)
-		return -ENOMEM;
+	if (IS_ERR(priv->base))
+		return PTR_ERR(priv->base);
 
 	for_each_available_child_of_node(pdev->dev.of_node, child) {
 		struct mvebu_comphy_lane *lane;

drivers/phy/mediatek/phy-mtk-tphy.c

@@ -27,6 +27,7 @@
 /* banks shared by multiple phys */
 #define SSUSB_SIFSLV_V1_SPLLC		0x000	/* shared by u3 phys */
 #define SSUSB_SIFSLV_V1_U2FREQ		0x100	/* shared by u2 phys */
+#define SSUSB_SIFSLV_V1_CHIP		0x300	/* shared by u3 phys */
 /* u2 phy bank */
 #define SSUSB_SIFSLV_V1_U2PHY_COM	0x000
 /* u3/pcie/sata phy banks */
@@ -762,7 +763,7 @@ static void phy_v1_banks_init(struct mtk_tphy *tphy,
 	case PHY_TYPE_USB3:
 	case PHY_TYPE_PCIE:
 		u3_banks->spllc = tphy->sif_base + SSUSB_SIFSLV_V1_SPLLC;
-		u3_banks->chip = NULL;
+		u3_banks->chip = tphy->sif_base + SSUSB_SIFSLV_V1_CHIP;
 		u3_banks->phyd = instance->port_base + SSUSB_SIFSLV_V1_U3PHYD;
 		u3_banks->phya = instance->port_base + SSUSB_SIFSLV_V1_U3PHYA;
 		break;

drivers/phy/rockchip/phy-rockchip-typec.c

@@ -443,14 +443,34 @@ static inline int property_enable(struct rockchip_typec_phy *tcphy,
 	return regmap_write(tcphy->grf_regs, reg->offset, val | mask);
 }
 
+static void tcphy_dp_aux_set_flip(struct rockchip_typec_phy *tcphy)
+{
+	u16 tx_ana_ctrl_reg_1;
+
+	/*
+	 * Select the polarity of the xcvr:
+	 * 1, Reverses the polarity (If TYPEC, Pulls ups aux_p and pull
+	 * down aux_m)
+	 * 0, Normal polarity (if TYPEC, pulls up aux_m and pulls down
+	 * aux_p)
+	 */
+	tx_ana_ctrl_reg_1 = readl(tcphy->base + TX_ANA_CTRL_REG_1);
+	if (!tcphy->flip)
+		tx_ana_ctrl_reg_1 |= BIT(12);
+	else
+		tx_ana_ctrl_reg_1 &= ~BIT(12);
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
+}
+
 static void tcphy_dp_aux_calibration(struct rockchip_typec_phy *tcphy)
 {
+	u16 tx_ana_ctrl_reg_1;
 	u16 rdata, rdata2, val;
 
 	/* disable txda_cal_latch_en for rewrite the calibration values */
-	rdata = readl(tcphy->base + TX_ANA_CTRL_REG_1);
-	val = rdata & 0xdfff;
-	writel(val, tcphy->base + TX_ANA_CTRL_REG_1);
+	tx_ana_ctrl_reg_1 = readl(tcphy->base + TX_ANA_CTRL_REG_1);
+	tx_ana_ctrl_reg_1 &= ~BIT(13);
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
 
 	/*
 	 * read a resistor calibration code from CMN_TXPUCAL_CTRL[6:0] and
@@ -472,18 +492,19 @@ static void tcphy_dp_aux_calibration(struct rockchip_typec_phy *tcphy)
 	 * Activate this signal for 1 clock cycle to sample new calibration
 	 * values.
 	 */
-	rdata = readl(tcphy->base + TX_ANA_CTRL_REG_1);
-	val = rdata | 0x2000;
-	writel(val, tcphy->base + TX_ANA_CTRL_REG_1);
+	tx_ana_ctrl_reg_1 |= BIT(13);
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
 	usleep_range(150, 200);
 
 	/* set TX Voltage Level and TX Deemphasis to 0 */
 	writel(0, tcphy->base + PHY_DP_TX_CTL);
 	/* re-enable decap */
 	writel(0x100, tcphy->base + TX_ANA_CTRL_REG_2);
 	writel(0x300, tcphy->base + TX_ANA_CTRL_REG_2);
-	writel(0x2008, tcphy->base + TX_ANA_CTRL_REG_1);
-	writel(0x2018, tcphy->base + TX_ANA_CTRL_REG_1);
+	tx_ana_ctrl_reg_1 |= BIT(3);
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
+	tx_ana_ctrl_reg_1 |= BIT(4);
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
 
 	writel(0, tcphy->base + TX_ANA_CTRL_REG_5);
 
@@ -494,8 +515,10 @@ static void tcphy_dp_aux_calibration(struct rockchip_typec_phy *tcphy)
 	writel(0x1001, tcphy->base + TX_ANA_CTRL_REG_4);
 
 	/* re-enables Bandgap reference for LDO */
-	writel(0x2098, tcphy->base + TX_ANA_CTRL_REG_1);
-	writel(0x2198, tcphy->base + TX_ANA_CTRL_REG_1);
+	tx_ana_ctrl_reg_1 |= BIT(7);
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
+	tx_ana_ctrl_reg_1 |= BIT(8);
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
 
 	/*
 	 * re-enables the transmitter pre-driver, driver data selection MUX,
@@ -505,27 +528,26 @@ static void tcphy_dp_aux_calibration(struct rockchip_typec_phy *tcphy)
 	writel(0x303, tcphy->base + TX_ANA_CTRL_REG_2);
 
 	/*
-	 * BIT 12: Controls auxda_polarity, which selects the polarity of the
-	 * xcvr:
-	 * 1, Reverses the polarity (If TYPEC, Pulls ups aux_p and pull
-	 * down aux_m)
-	 * 0, Normal polarity (if TYPE_C, pulls up aux_m and pulls down
-	 * aux_p)
+	 * Do some magic undocumented stuff, some of which appears to
+	 * undo the "re-enables Bandgap reference for LDO" above.
 	 */
-	val = 0xa078;
-	if (!tcphy->flip)
-		val |= BIT(12);
-	writel(val, tcphy->base + TX_ANA_CTRL_REG_1);
+	tx_ana_ctrl_reg_1 |=  BIT(15);
+	tx_ana_ctrl_reg_1 &= ~BIT(8);
+	tx_ana_ctrl_reg_1 &= ~BIT(7);
+	tx_ana_ctrl_reg_1 |=  BIT(6);
+	tx_ana_ctrl_reg_1 |=  BIT(5);
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
 
 	writel(0, tcphy->base + TX_ANA_CTRL_REG_3);
 	writel(0, tcphy->base + TX_ANA_CTRL_REG_4);
 	writel(0, tcphy->base + TX_ANA_CTRL_REG_5);
 
 	/*
-	 * Controls low_power_swing_en, set the voltage swing of the driver
-	 * to 400mv. The values	below are peak to peak (differential) values.
+	 * Controls low_power_swing_en, don't set the voltage swing of the
+	 * driver to 400mv. The values below are peak to peak (differential)
+	 * values.
 	 */
-	writel(4, tcphy->base + TXDA_COEFF_CALC_CTRL);
+	writel(0, tcphy->base + TXDA_COEFF_CALC_CTRL);
 	writel(0, tcphy->base + TXDA_CYA_AUXDA_CYA);
 
 	/* Controls tx_high_z_tm_en */
@@ -555,6 +577,7 @@ static int tcphy_phy_init(struct rockchip_typec_phy *tcphy, u8 mode)
 	reset_control_deassert(tcphy->tcphy_rst);
 
 	property_enable(tcphy, &cfg->typec_conn_dir, tcphy->flip);
+	tcphy_dp_aux_set_flip(tcphy);
 
 	tcphy_cfg_24m(tcphy);
 
@@ -685,8 +708,11 @@ static int rockchip_usb3_phy_power_on(struct phy *phy)
 	if (tcphy->mode == new_mode)
 		goto unlock_ret;
 
-	if (tcphy->mode == MODE_DISCONNECT)
-		tcphy_phy_init(tcphy, new_mode);
+	if (tcphy->mode == MODE_DISCONNECT) {
+		ret = tcphy_phy_init(tcphy, new_mode);
+		if (ret)
+			goto unlock_ret;
+	}
 
 	/* wait TCPHY for pipe ready */
 	for (timeout = 0; timeout < 100; timeout++) {
@@ -760,10 +786,12 @@ static int rockchip_dp_phy_power_on(struct phy *phy)
 	 */
 	if (new_mode == MODE_DFP_DP && tcphy->mode != MODE_DISCONNECT) {
 		tcphy_phy_deinit(tcphy);
-		tcphy_phy_init(tcphy, new_mode);
+		ret = tcphy_phy_init(tcphy, new_mode);
 	} else if (tcphy->mode == MODE_DISCONNECT) {
-		tcphy_phy_init(tcphy, new_mode);
+		ret = tcphy_phy_init(tcphy, new_mode);
 	}
+	if (ret)
+		goto unlock_ret;
 
 	ret = readx_poll_timeout(readl, tcphy->base + DP_MODE_CTL,
 				 val, val & DP_MODE_A2, 1000,

drivers/phy/tegra/xusb.c

@@ -454,6 +454,8 @@ tegra_xusb_find_port_node(struct tegra_xusb_padctl *padctl, const char *type,
 		char *name;
 
 		name = kasprintf(GFP_KERNEL, "%s-%u", type, index);
+		if (!name)
+			return ERR_PTR(-ENOMEM);
 		np = of_find_node_by_name(np, name);
 		kfree(name);
 	}

drivers/usb/class/cdc-acm.c

@@ -1832,6 +1832,9 @@ static const struct usb_device_id acm_ids[] = {
 	{ USB_DEVICE(0xfff0, 0x0100), /* DATECS FP-2000 */
 	.driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
 	},
+	{ USB_DEVICE(0x09d8, 0x0320), /* Elatec GmbH TWN3 */
+	.driver_info = NO_UNION_NORMAL, /* has misplaced union descriptor */
+	},
 
 	{ USB_DEVICE(0x2912, 0x0001), /* ATOL FPrint */
 	.driver_info = CLEAR_HALT_CONDITIONS,

drivers/usb/core/config.c

@@ -960,10 +960,12 @@ int usb_get_bos_descriptor(struct usb_device *dev)
 	for (i = 0; i < num; i++) {
 		buffer += length;
 		cap = (struct usb_dev_cap_header *)buffer;
-		length = cap->bLength;
 
-		if (total_len < length)
+		if (total_len < sizeof(*cap) || total_len < cap->bLength) {
+			dev->bos->desc->bNumDeviceCaps = i;
 			break;
+		}
+		length = cap->bLength;
 		total_len -= length;
 
 		if (cap->bDescriptorType != USB_DT_DEVICE_CAPABILITY) {

drivers/usb/core/devio.c

@@ -1576,11 +1576,7 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb
 			totlen += isopkt[u].length;
 		}
 		u *= sizeof(struct usb_iso_packet_descriptor);
-		if (totlen <= uurb->buffer_length)
-			uurb->buffer_length = totlen;
-		else
-			WARN_ONCE(1, "uurb->buffer_length is too short %d vs %d",
-				  totlen, uurb->buffer_length);
+		uurb->buffer_length = totlen;
 		break;
 
 	default:

drivers/usb/core/hub.c

@@ -2710,13 +2710,16 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1,
 	if (!(portstatus & USB_PORT_STAT_CONNECTION))
 		return -ENOTCONN;
 
-	/* bomb out completely if the connection bounced.  A USB 3.0
-	 * connection may bounce if multiple warm resets were issued,
+	/* Retry if connect change is set but status is still connected.
+	 * A USB 3.0 connection may bounce if multiple warm resets were issued,
 	 * but the device may have successfully re-connected. Ignore it.
 	 */
 	if (!hub_is_superspeed(hub->hdev) &&
-			(portchange & USB_PORT_STAT_C_CONNECTION))
-		return -ENOTCONN;
+	    (portchange & USB_PORT_STAT_C_CONNECTION)) {
+		usb_clear_port_feature(hub->hdev, port1,
+				       USB_PORT_FEAT_C_CONNECTION);
+		return -EAGAIN;
+	}
 
 	if (!(portstatus & USB_PORT_STAT_ENABLE))
 		return -EBUSY;

drivers/usb/core/quirks.c

@@ -221,6 +221,10 @@ static const struct usb_device_id usb_quirk_list[] = {
 	/* Corsair Strafe RGB */
 	{ USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT },
 
+	/* MIDI keyboard WORLDE MINI */
+	{ USB_DEVICE(0x1c75, 0x0204), .driver_info =
+			USB_QUIRK_CONFIG_INTF_STRINGS },
+
 	/* Acer C120 LED Projector */
 	{ USB_DEVICE(0x1de1, 0xc102), .driver_info = USB_QUIRK_NO_LPM },
 

drivers/usb/host/xhci-hub.c

@@ -420,14 +420,25 @@ static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend)
 						     GFP_NOWAIT);
 			if (!command) {
 				spin_unlock_irqrestore(&xhci->lock, flags);
-				xhci_free_command(xhci, cmd);
-				return -ENOMEM;
+				ret = -ENOMEM;
+				goto cmd_cleanup;
+			}
+
+			ret = xhci_queue_stop_endpoint(xhci, command, slot_id,
+						       i, suspend);
+			if (ret) {
+				spin_unlock_irqrestore(&xhci->lock, flags);
+				xhci_free_command(xhci, command);
+				goto cmd_cleanup;
 			}
-			xhci_queue_stop_endpoint(xhci, command, slot_id, i,
-						 suspend);
 		}
 	}
-	xhci_queue_stop_endpoint(xhci, cmd, slot_id, 0, suspend);
+	ret = xhci_queue_stop_endpoint(xhci, cmd, slot_id, 0, suspend);
+	if (ret) {
+		spin_unlock_irqrestore(&xhci->lock, flags);
+		goto cmd_cleanup;
+	}
+
 	xhci_ring_cmd_db(xhci);
 	spin_unlock_irqrestore(&xhci->lock, flags);
 
@@ -439,6 +450,8 @@ static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend)
 		xhci_warn(xhci, "Timeout while waiting for stop endpoint command\n");
 		ret = -ETIME;
 	}
+
+cmd_cleanup:
 	xhci_free_command(xhci, cmd);
 	return ret;
 }

drivers/usb/host/xhci-ring.c

@@ -1309,6 +1309,7 @@ static void xhci_complete_del_and_free_cmd(struct xhci_command *cmd, u32 status)
 void xhci_cleanup_command_queue(struct xhci_hcd *xhci)
 {
 	struct xhci_command *cur_cmd, *tmp_cmd;
+	xhci->current_cmd = NULL;
 	list_for_each_entry_safe(cur_cmd, tmp_cmd, &xhci->cmd_list, cmd_list)
 		xhci_complete_del_and_free_cmd(cur_cmd, COMP_COMMAND_ABORTED);
 }
@@ -2579,15 +2580,21 @@ static int handle_tx_event(struct xhci_hcd *xhci,
 				(struct xhci_generic_trb *) ep_trb);
 
 		/*
-		 * No-op TRB should not trigger interrupts.
-		 * If ep_trb is a no-op TRB, it means the
-		 * corresponding TD has been cancelled. Just ignore
-		 * the TD.
+		 * No-op TRB could trigger interrupts in a case where
+		 * a URB was killed and a STALL_ERROR happens right
+		 * after the endpoint ring stopped. Reset the halted
+		 * endpoint. Otherwise, the endpoint remains stalled
+		 * indefinitely.
 		 */
 		if (trb_is_noop(ep_trb)) {
-			xhci_dbg(xhci,
-				 "ep_trb is a no-op TRB. Skip it for slot %u ep %u\n",
-				 slot_id, ep_index);
+			if (trb_comp_code == COMP_STALL_ERROR ||
+			    xhci_requires_manual_halt_cleanup(xhci, ep_ctx,
+							      trb_comp_code))
+				xhci_cleanup_halted_endpoint(xhci, slot_id,
+							     ep_index,
+							     ep_ring->stream_id,
+							     td, ep_trb,
+							     EP_HARD_RESET);
 			goto cleanup;
 		}
 

drivers/usb/host/xhci.c

@@ -4805,7 +4805,8 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks)
 		 */
 		hcd->has_tt = 1;
 	} else {
-		if (xhci->sbrn == 0x31) {
+		/* Some 3.1 hosts return sbrn 0x30, can't rely on sbrn alone */
+		if (xhci->sbrn == 0x31 || xhci->usb3_rhub.min_rev >= 1) {
 			xhci_info(xhci, "Host supports USB 3.1 Enhanced SuperSpeed\n");
 			hcd->speed = HCD_USB31;
 			hcd->self.root_hub->speed = USB_SPEED_SUPER_PLUS;